Base | Representation |
---|---|
bin | 1001100100000… |
… | …10010101111100 |
3 | 12120221212220202 |
4 | 10302002111330 |
5 | 131014210120 |
6 | 11543303032 |
7 | 1662623024 |
oct | 462022574 |
9 | 176855822 |
10 | 80225660 |
11 | 413157a9 |
12 | 22a4aa78 |
13 | 1380c008 |
14 | a924a84 |
15 | 709a875 |
hex | 4c8257c |
80225660 has 12 divisors (see below), whose sum is σ = 168473928. Its totient is φ = 32090256.
The previous prime is 80225647. The next prime is 80225681. The reversal of 80225660 is 6652208.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2005622 + ... + 2005661.
It is an arithmetic number, because the mean of its divisors is an integer number (14039494).
Almost surely, 280225660 is an apocalyptic number.
It is an amenable number.
80225660 is an abundant number, since it is smaller than the sum of its proper divisors (88248268).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80225660 is a wasteful number, since it uses less digits than its factorization.
80225660 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4011292 (or 4011290 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 29.
The square root of 80225660 is about 8956.8778042351. The cubic root of 80225660 is about 431.2916991114.
Adding to 80225660 its reverse (6652208), we get a palindrome (86877868).
It can be divided in two parts, 802 and 25660, that multiplied together give a triangular number (20579320 = T6415).
The spelling of 80225660 in words is "eighty million, two hundred twenty-five thousand, six hundred sixty".
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